Seirawan, Yasser VS Ivanov, Igor Vasilievich 1982.08.11

[Event "Interzonal-12b"]
[Site "Toluca"]
[Date "1982.08.11"]
[Round "1"]
[White "Seirawan, Yasser"]
[Black "Ivanov, Igor Vasilievich"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2515"]

1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 5. d4 cxd4 6. Qxd4 Nc6 7. Qe4 d6 8. Nf3 dxe5 9. Nxe5 Bd7 10. Nxd7 Qxd7 11. Bg5 Bb4 12. Rd1 Qc7 13. Be2 h6 14. Bf4 Bxc3+ 15. bxc3 e5 16. O-O Nf6 17. Qe3 O-O 18. Bg3 Rad8 19. Bf3 Rxd1 20. Rxd1 Re8 21. h3 Qe7 22. a4 e4 23. Be2 Rd8 24. Rxd8+ Qxd8 25. Bh4 g5 26. Bg3 Qd7 27. c5 Qe6 28. c4 Ne8 29. h4 gxh4 30. Bxh4 1/2-1/2